Sharks and shark attacks are pretty common phobias. I dont think anyone would willingly swim in the vicinity of one of the sharp-toothed predators. Check out the video above, in which two beachgoers in Destin, Florida were swimming just feet away from a massive hammerhead shark and had no idea.The video was taken from a balcony, so viewers get a really cool, birds-eye view of how the whole situation played out. Luckily, no one got hurt, except the unfortunate fish who became the sharks dinner.